Are 22 to 25 the same model of threading dies?

[StDallas]

22 to 25 are the same model of threading dies, just adjust the peeling gear. Below is an extended introduction: Differences in threading dies: The distinction of construction threading dies is mainly divided by different pitches, different tooth angles, and whether they are numbered dies or single dies. Numbered dies have numbers 1, 2, 3 or one dot, two dots, three dots engraved on three wheels respectively. The national standard for 16-22 rebar couplers requires threading dies with a 2.5 pitch, while rebar couplers above 25 require threading dies with a 3.0 pitch. Precautions: Threading machine tools with poor precision, large vibration, or abnormal operation; misalignment of threading dies, axial displacement of the threaded workpiece, causing the threads to be subjected to both shear and compressive stresses; uneven size of the threaded workpiece, uncleaned surface with grinding wheel dust, oxide scale, and dirt.

[DonovanRose]

I specialize in automotive tools, and typically, 22 to 25 doesn't refer to a specific thread roller model but rather indicates four different sizes. Thread rollers are used for machining threads, such as on engine bolts or transmission components. These numbers represent thread diameters (e.g., 22mm, 25mm), with each size corresponding to a different model, like M22 or M25. If these are mistakenly treated as a single model, thread machining accuracy will suffer, potentially leading to bolt loosening or part failure. I recommend checking your vehicle manual to confirm the required size or using calipers to measure existing threads. Understanding this can prevent rework during repairs—especially for DIY projects—where choosing the right tool saves time and money. In fact, automotive manufacturing often distinguishes multiple models to ensure precision and safety-critical standards.

[McReed]

As someone who frequently engages in car DIY, I believe 22 to 25 isn't a single die thread model, but rather a range of size options. During repairs, each number like 23 or 24 represents models with different thread diameters. For instance, repairing tire bolts requires precise matching. Using the wrong size can easily cause thread wear or insecure installation, leading to numerous issues later. I recommend carefully checking the packaging instructions when purchasing online or in stores, as they're usually clearly labeled to avoid confusion. Start with small projects like changing spark plugs to practice tool selection—it becomes easier with experience. Remember, identifying the correct model protects your vehicle and saves money.

[Joanna]

I believe that 22 to 25 definitely do not correspond to the same thread rolling wheel model. These numbers represent different diameter specifications. In automotive maintenance, using incorrect models can cause thread damage or part detachment, increasing accident risks. Always verify the correct size according to the manual or professional tool guides—don't cut corners by overlooking details. Safety comes first.